U-boat type

Type I

Germany's first postwar ocean-going U-boat design served as a limited bridge between experimental boats and the later Type IX.

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Profile drawing for Type I

Design and service

The Type I story

The Type I was an experimental submarine type build in 1934/35 designed for Atlantic operations. Based on submarines built for Turkey in 1932, only two of these U-Boats were built. Both were lost very early in World War II.

At a glance

Technical profile

Dimensions, armament, machinery and performance.

Dimensions

Displacement
862 t (983 submerged)
Length
72,39 m
Beam
6,21 m
Diving depth
200 m

Propulsion and endurance

Power
2800-3080 hp (diesel), 1000 hp (battery)
Speed
17,75 - 18,6 kn (8,3 submerged)
Range
7000 miles at 10 kn (136 miles at 2 kn submerged)

Armament

Torpedo tubes
4 x bow 53,3 cm torpedo tubes; 2 x stern 53,3 torpedo tubes
Payload
14 torpedoes or 42 mines
Deck armament
1 x 10,5 cm; 1 x 2 cm